Unknown

If there is an amber triangle on your property on our latest map or the Check Your Property tool has returned the status of ‘Unknown’ when you enter your postcode, then your property’s details are not currently known by commercial providers.

In some cases, the information held by the commercial providers is incomplete or not up to date, and premises may be shown as unknown. These are often (but not exclusively) properties that were under construction at the time that the underlying map was created by Ordnance Survey. We are working to address these anomalies.